<!doctype html>
<html>
	<head>
		<!--声明当前网页的编码集（中文编码<gbk,gb2312>,国际编码<utf-8>）-->
		<meta http-equiv="Content-Type" content="text/html; charset=utf-8" >
		<!--声明当前页面的三要素-->
		<title>HTML模板</title>
		<meta name="keywords" content="关键字,关键字">
		<meta name="description" content="描述文字<=76">

		<!--css/js-->
		<style type="text/css">
			*{margin:0;padding:0;}
			.box{width:300px;height:300px;background:red;float:left;}
			.box li{position:absolute;left:5px;top:5px;}
			.box1{width:0px;height:0px;position:relative;top:17px;left:40px;display:inline-block;border-top:6px solid transparent;border-right:6px solid #000;border-bottom:6px solid transparent;border-left:6px solid transparent;float:left;}
		</style>
>
	</head>
<body>
	
		<div class="box1"></div>
		
	
</body>

</html>
